WCS1700 Hall Effect Base Linear Current Sensor Features: Diameter 3mm conductor through hole Output voltage proportional to AC and DC current Min. sensing current 60A at 5V voltage supply High Sensitivity 33mV/A Wide operating voltage range 3.0~12 V. Low operating current 3mA Nearly zero magnetic hysteresis. Ratiometric output from supply voltage 23K Hz bandwidth Functional Description : The Winson WCS1700 provides economical and precise solution for both DC and AC current sensing in industrial, commercial and communications systems. The unique package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, over-current fault detection and any intelligent power management system etc… The WCS1700 consists of a precise, low-temperature drift linear hall sensor IC with temperature compensation circuit and a diameter 3mm through hole. Users can use system’s own electric wire by pass it through this hole to measure passing current. This design allow system designers to monitor any current path without breaking or changing original system layout at all. Any current flowing through this hole will generate a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. The terminals of the conductive path are electrically isolated from the sensor leads. This allow the WCS1700 current sensor to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques and make system more competitive in cost. Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2009/9/8 WCS1700 Function Block: Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2009/9/8 WCS1700 Electrical Characteristics: (T=+25˚C, Vdd=5.0V ) Characteristic Min Typ Max Units Symbol Test Conditions Supply Voltage Vcc Supply Current Isupply V0G Zero Current Vout Conductor Through Hole Sensitivity △Vout Bandwidth BW Measurable Current Range Temperature Drift MCR △Vout ─ 3.0 ─ 12 V IP =0 A ─ 3.5 6.0 mA IP =0 A 2.4 ─ 2.5 3.0 2.6 ─ V mm IP= +10 A IP= -10 A +29 +32 +35 -30 -33 -36 23 － － Vdd=5V Vdd=12V Ip =0 A － － － ±60 ±120 ±0.5 － － － All output-voltage measurements are made with a voltmeter having an input impedance of at least 100kΩ Package Information: Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2009/9/8 mV/A kHz A mV/℃